private void btnRotate_Click(object sender, EventArgs e)
{
if (pictureBox1.Image != null)
{
Bitmap a = new Bitmap(pictureBox1.Image);//得到图片框中的图片
pictureBox1.Image = GetGraphics.Rotate(a, 90);
pictureBox1.Location = panel1.Location;
pictureBox1.Refresh();//最后刷新图片框
}
}
public bool PreFilterMessage(ref Message m)
{
TwainCommand cmd = tw.PassMessage(ref m);
if (cmd == TwainCommand.Not)
{
return(false);
}
switch (cmd)
{
case TwainCommand.CloseRequest:
{
EndingScan();
tw.CloseSrc();
break;
}
case TwainCommand.CloseOk:
{
EndingScan();
tw.CloseSrc();
break;
}
case TwainCommand.DeviceEvent:
{
break;
}
case TwainCommand.TransferReady:
{
ArrayList pics = tw.TransferPictures();
EndingScan();
tw.CloseSrc();
int picCount = pics.Count;
if (picCount > 0)
{
string fileName = "";
for (int i = 0; i < picCount; i++)
{
IntPtr img = (IntPtr)pics[i];
GetGraphics get = new GetGraphics(img);
Bitmap b = get.GetImage();
StringBuilder sb = new StringBuilder();
sb.Append("IMG");
sb.Append((i + 1).ToString("0000"));
sb.Append(DateTime.UtcNow.ToString("_yyyyMMddHHmmss"));
fileName = string.Format(SavePath, sb);
b.Save(fileName);
listPicture.Items.Add(fileName);
if (i == picCount - 1)
{
pictureBox1.Image = b;
}
}
}
break;
}
}
return(true);
}
